Issue
What is the programmatic way of enabling or disabling an interface in kernel space? What should be done?
id='dv4'>
Solution
...by using IOCTL's...
ioctl(skfd, SIOCSIFFLAGS, &ifr);
... with the IFF_UP bit set or unset depending on whether you want bring the interface up or down accordingly, i.e.:
static int set_if_up(char *ifname, short flags)
{
return set_if_flags(ifname, flags | IFF_UP);
}
static int set_if_down(char *ifname, short flags)
{
return set_if_flags(ifname, flags & ~IFF_UP);
}
Code copy-pasted from Linux networking documentation.
Answered By - Andrejs Cainikovs Answer Checked By - Robin (WPSolving Admin)